Examlex
A random sample of patients who attended a clinic was selected. The age of the patient (years) and the number of days since the last visit were collected and are displayed in the figure. A plausible value of the correlation coefficient for the data displayed is
AIDS
Acquired immune deficiency syndrome. A secondary immune deficiency that develops as the result of infection by the HIV virus.
Measles
A highly contagious viral disease characterized by fever, cough, and a distinctive rash, affect primarily children.
Unvaccinated Person
An individual who has not received vaccination against specific diseases.
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